Gate latch with steel insert
A gate latch is for use in connection with a pontoon boat having a handrail with a gate and at least one jamb. The jamb has a predetermined width and depth, and a mounting hole through it. The gate latch has a gate stop with a front plate commensurate with the jamb width. The gate stop has a rear plate longer than the jamb width. A transverse plate extends from the front plate to the rear plate, commensurate with the jamb depth. The gate stop front and rear plates have holes through them aligned with the jamb mounting hole, to mount the gate stop on the jamb with a single threaded fastener. The gate latch has a latch arm with a knob for grasping, and is mounted on the gate stop front plate with the single threaded fastener for pivotal movement from a generally upright latch open position to a generally lateral latch closed position. A detent is provided for selectively holding the latch arm in the upright and the lateral positions. The gate stop and the latch arm are each molded from either a thermoplastic or a thermoset resin. Metal inserts are disposed within the molded gate stop and within the molded latch arm, so as to strengthen the gate stop and the latch arm.
Not Applicable
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENTNot Applicable
BACKGROUND OF THE INVENTION(1) This invention relates to the field of gate latches, and more particularly to a plastic gate latch with a steel insert, especially for use in connection with a handrail on a pontoon boat.
(2) Some examples of pontoon boat gate latches known in the art are seen in the following examples.
(3) Huntley, U.S. Pat. No. 6,854,414, shows a sliding bolt type of latch. This latch rattles when the vessel is underway, has an excessive number of parts, and it is not very attractive. In the event that the bolt becomes corroded or bent, the latch will become difficult to operate.
(4) Putman, U.S. Pat. No. 6,443,088, illustrates a lift gate latch. The gate is lifted upward on the hinge pins, elevating the gate clear of the latch pocket, to open or close the gate. The hinge pins could jam, making the gate difficult to lift. The gate could rattle in the latch pocket when the boat is underway.
(5) Accordingly, there is a need to provide a pontoon boat gate latch that has a minimum number of parts for simple installation.
(6) There is a further need to provide a pontoon boat gate latch of the type described and that will not jam, bend, or corrode.
(7) There is a yet further need to provide a pontoon boat gate latch of the type described and that is easy to operate.
(8) There is a still further need to provide a pontoon boat gate latch of the type described and that will not rattle when the vessel is underway.
(9) There is another need to provide a pontoon boat gate latch of the type described and that can be quickly and easily installed with only a single fastener required.
(10) There is yet another need to provide a pontoon boat gate latch of the type described and that will meet the recommendations of the ABYC (American Boat and Yacht Council) and the NMMA (National Marine Manufacturer's Association) for minimum breaking strength of 400 lb (181 kg) in all directions.
(11) There is still another need to provide a pontoon boat gate latch of the type described and that can be tightened temporarily for shipping the boat, so that the gate does not open in transit, then loosened for proper operation when the boat is delivered.
(12) There is an additional need to provide a pontoon boat gate latch of the type described and that can be manufactured cost-effectively in large quantities of high quality.
BRIEF SUMMARY OF THE INVENTION(13) In accordance with the present invention, there is provided a gate latch for use in connection with a pontoon boat. The pontoon boat has a handrail with a gate and at least one jamb. The jamb has a predetermined width, a predetermined depth, and a mounting hole through it. The gate latch comprises a gate stop having a front plate extending from a proximal end to a distal end. The distance between the front plate proximal end and the front plate distal end is generally commensurate with the jamb predetermined width. The gate stop has a rear plate extending from a proximal end to a distal end. The distance between the rear plate proximal end and the rear plate distal end is greater than the jamb predetermined width. The gate stop has a transverse plate extending from the front plate proximal end to the rear plate proximal end. The distance between the front plate proximal end and the rear plate proximal end is generally commensurate with the jamb predetermined depth. The gate stop front plate has a hole through it. The gate stop rear plate has a hole through it that is collinear with the front plate hole. The front and rear plate holes are adapted for alignment with the jamb mounting hole, so as to be able to mount the gate stop on the jamb. The jamb mounting hole is off-center for strength.
(14) The gate latch includes a latch arm, which extends from a proximal end to a distal end. The latch arm has a front aspect and an opposite rear aspect. The latch arm has a knob projecting outward from the front aspect at the distal end for manual grasping. The latch arm has a button projecting outward from the rear aspect at the distal end for contact with the gate. The knob projects outward further than the button. The latch arm can thus be reversed to fit 1 ⅛ or 1 ¼ inch jamb material. The proximal end has a hole through it. The hole is adapted to pivotally mount the latch arm on the gate stop front plate for pivotal movement from a generally upright latch open position, wherein the gate will be free to open, to a generally lateral latch closed position, wherein the gate will be captured between the latch arm and the gate stop rear plate.
(15) Pivotal means is provided for pivotal mounting of the latch arm proximal end on the gate stop front plate. A detent means is provided for selectively holding the latch arm in the generally upright position and in the generally lateral position.
(16) The gate stop and the latch arm are each molded from either a thermoplastic resin or a thermoset resin. The gate stop includes a metal insert disposed within the molded gate stop, so as to strengthen the gate stop. The latch arm includes a metal insert disposed within the molded latch arm, so as to strengthen the latch arm.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(17) A more complete understanding of the present invention may be obtained from consideration of the following description in conjunction with the drawing, in which:
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(43) Referring now to the drawing, and especially to
(44) The gate latch 30 includes a latch arm 70, which extends from a proximal end 72 to a distal end 74. The latch arm 70 has a front aspect 76 and an opposite rear aspect 78. The latch arm 70 has a knob 80 projecting outward from the front aspect 76 at the distal end 74 for manual grasping. The latch arm 70 has a button 82 projecting outward from the rear aspect 78 at the distal end 74 for contact with the gate 33. The latch arm 70 can be mounted in a reversed position, so that the knob 80 contacts the gate 33, and the button 82 is manually grasped. In this manner, the gate latch can be used for either 1 ⅛ inch or 1 ¼ inch jamb material, both commonly used tubing sizes. The proximal end 72 has a hole 84 through it. The hole 84 is adapted to pivotally mount the latch arm 70 on the gate stop front plate 40 for pivotal movement from a generally upright latch open position as shown by arrow 86 in
(45) Pivotal means is provided for pivotal mounting of the latch arm proximal end 72 on the gate stop front plate 40. In the preferred embodiment, a threaded fastener 90 is adapted for passing through the latch arm hole 84 and the gate stop front plate hole 66 and the jamb mounting hole 36 and the gate stop rear plate hole 68. The threaded fastener 90 will pivotally fasten the latch arm 70 to the gate stop front plate 40. The single threaded fastener 90 will also fasten the gate stop 38 to the jamb 34. It is to be understood that any fastener, such as a rivet, can be used. Placing the jamb mounting hole 36 off-center and closer to the gate allows use of a shorter latch arm 70. This results in less leverage and a lower bending moment in the latch arm 70 and in the threaded fastener 90.
(46) A detent is provided for selectively holding the latch arm 70 in the generally upright position and in the generally lateral position. The front plate 40 and the latch arm 70 have mutually opposed mating faces, 41 and 71a. One of the mating faces has a ridge molded in, and the opposed of the mating faces has at least one groove, and preferably two grooves, molded in. The grooves are adapted to receive the ridge, so as to hold the latch arm 70 in either the generally upright or the generally lateral position.
(47) In one embodiment, the latch arm mating face 71a has the ridge 92 molded in adjacent the proximal end 72. The ridge 92 extends radially outward from the hole 84. The gate stop front plate mating face 41 has the grooves 94 and 96 molded in, which extend radially outward from the hole 66. The grooves 94 and 96 are adapted to receive the latch arm ridge 92. The latch arm mating face 71a or 71b can be either the front aspect 76 or the rear aspect 78 respectively, since the latch arm 70 is reversible. The ridge 92 is therefore molded into both the front 76 and rear 78 aspects, as shown in
(48) In another embodiment depicted in
(49). The gate stop 38 and the latch arm 70 are each molded from a polymeric material selected from the group consisting of thermoplastic resins and thermoset resins. The gate stop 38 includes a metal insert 98 disposed within the molded gate stop 38, as shown in
(50) The latch arm 70 includes a metal insert 100 disposed within the molded latch arm 70, so as to strengthen the latch arm 70. As before, the metal insert 100 is recessed on all sides below the surface of the molded latch arm 70.
(51) Turning now to
(52) The gate stop 138 is adapted for use with the same latch arm 70 as gate stop 38. The Pivotal means and the detent are the same as described above. The gate stop 138 is molded from a thermoplastic or a thermoset resin. The gate stop 138 includes a U-shaped metal insert 198 disposed within the molded gate stop 138, as shown in
(53) Referring now to
(54) The gate stop 238 is adapted for use with the same latch arm 70 as gate stop 38. The Pivotal means and the detent are the same as described above. The gate stop 238 is molded from a thermoplastic or a thermoset resin. The gate stop 238 includes a flat metal insert 298 disposed within the molded gate stop 238, as shown in
(55) Referring now to
(56) Numerous modifications and alternative embodiments of the invention will be apparent to those skilled in the art in view of the foregoing description. It is to be understood that any of the above-described detents can be combined with any of the gate stops. Accordingly, this description is to be construed as illustrative only and is for the purpose of teaching those skilled in the art the best mode of carrying out the invention. Details of the structure may be varied substantially without departing from the spirit of the invention and the exclusive use of all modifications that will come within the scope of the appended claims is reserved.
Parts List Gate Latch With Steel InsertPart No. Description
30 gate latch
32 handrail
33 gate
34 jamb
36 jamb mounting hole
38 gate stop
40 front plate
41 front plate mating face
42 front plate upper edge
44 front plate lower edge
46 front plate proximal end
48 front plate distal end
50 rear plate
52 rear plate upper edge
54 rear plate lower edge
56 rear plate proximal end
58 rear plate distal end
60 transverse plate
62 transverse plate upper edge
64 transverse plate lower edge
66 front plate hole
67 gate stop inside surface
68 rear plate hole
69 gate stop outside surface
70 latch arm
71a latch arm mating face
71b latch arm mating face
72 latch arm proximal end
74 latch arm distal end
76 latch arm front face
78 latch arm rear face
80 knob
82 button
84 latch arm hole
86 latch open arrow
88 gate open arrow
90 threaded fastener
92 latch arm single ridge
94 front plate first groove
96 front plate second groove
98 gate stop metal insert
100 latch arm metal insert
138 gate stop
140 front plate
142 front plate upper edge
144 front plate lower edge
146 front plate proximal end
148 front plate distal end
150 rear plate
152 rear plate upper edge
154 rear plate lower edge
156 rear plate proximal end
158 rear plate distal end
160 transverse plate
162 transverse plate upper edge
164 transverse plate lower edge
166 front plate hole
167 gate stop inside surface
168 rear plate hole
169 gate stop outside surface
194 front plate first groove
196 front plate second groove
198 gate stop metal insert
238 gate stop
240 front plate
242 front plate upper edge
244 front plate lower edge
246 front plate proximal end
248 front plate distal end
250 rear plate
252 rear plate upper edge
254 rear plate lower edge
256 rear plate proximal end
258 rear plate distal end
260 transverse plate
262 transverse plate upper edge
264 transverse plate lower edge
266 front plate hole
267 gate stop inside surface
268 rear plate hole
269 gate stop outside surface
294 front plate first groove
296 first plate second groove
298 gate stop metal insert
306 gate stop ridge
308 latch arm first groove
310 latch arm second groove
Claims
1-20. (canceled)
21. A gate latch, for use in connection with a pontoon boat, the pontoon boat having a handrail with at least one jamb, the jamb having a predetermined width and a predetermined depth, the jamb having a mounting hole therethrough, the gate latch comprising:
- a gate stop, the gate stop having a front plate extending between opposite upper and lower edges and extending from a proximal end to a distal end, the distance between the front plate proximal end and the front plate distal end being generally commensurate with the jamb's predetermined width, the gate stop having a rear plate extending between opposite upper and lower edges and extending from a proximal end to a distal end, the distance between the rear plate proximal end and the rear plate distal end being greater than the jamb's predetermined width, the gate stop having a transverse plate extending between opposite upper and lower edges and extending from the front plate proximal end to the rear plate proximal end, the distance between the front plate proximal end and the rear plate proximal end being generally commensurate with the jamb's predetermined depth, the gate stop front plate having a hole therethrough, the gate stop rear plate having a hole therethrough collinear with the front plate hole, the front and rear plate holes being adapted for alignment with the jamb's mounting hole, so as to be able to mount the gate stop on the jamb, the gate stop being molded from a polymeric material, the gate stop having a metal insert disposed within the molded gate stop;
- a latch arm extending from a proximal end to a distal end, the latch arm having a front aspect and an opposite rear aspect, the latch arm having a knob projecting outward from the front aspect at the distal end for manual grasping, the latch arm having a button projecting outward from the rear aspect at the distal end for contact with the gate, the knob projecting outward further than the button, the latch arm being reversible so as to accommodate different size jambs, the proximal end having a hole therethrough, the hole being adapted to pivotally mount the latch arm on the gate stop front plate for pivotal movement of the latch arm from a generally upright latch open position wherein the gate will be free to open, to a generally lateral latch closed position wherein the gate will be captured between the latch arm and the gate stop rear plate, the front plate and the latch arm having mutually opposed mating faces, one of the mating faces having a ridge molded in, and the opposed of the mating faces having at least one groove molded in, the groove being adapted to receive the ridge, so as to hold the latch arm in one of the generally upright and generally lateral positions, the latch arm being molded from a polymeric material, the latch arm having a metal insert disposed within the molded latch arm; and
- pivotal means for pivotal mounting of the latch arm proximal end on the gate stop front plate.
22. The gate latch of claim 21, wherein:
- the gate stop metal insert further comprises a U-shaped metal insert disposed within the molded gate stop; and
- the latch arm metal insert further comprises a flat metal insert disposed within the molded latch arm, so as to strengthen the gate stop and the latch arm.
23. The gate latch of claim 21, wherein:
- the gate stop metal insert further comprises a flat metal insert disposed within the molded gate stop; and
- the latch arm metal insert further comprises a flat metal insert disposed within the molded latch arm, so as to strengthen the gate stop and the latch arm.
24. The gate latch of claim 21, wherein the pivotal means further comprises a threaded fastener adapted for passing through the latch arm hole and the gate stop front plate hole and the jamb's mounting hole and the gate stop rear plate hole, so as to pivotally fasten the latch arm to the gate stop front plate and to fasten the gate stop to the jamb.
25. The gate latch of claim 21, wherein the gate stop polymeric material and the latch arm polymeric material are selected from the group consisting of thermoplastic resins and thermoset resins.
26. The gate latch of claim 21, further comprising:
- the latch arm mating face having the ridge molded in adjacent the proximal end, the ridge extending radially outward from the hole; and
- the gate stop front plate mating face having the groove molded in, the groove extending radially outward from the hole, and adapted to receive the latch arm ridge so as to hold the latch arm in position.
27. The gate latch of claim 21, further comprising:
- the gate stop front plate mating face having the ridge molded in, the ridge extending radially outward from adjacent the front plate hole; and
- the latch arm mating face having the groove molded in adjacent the proximal end, the groove extending radially outward from adjacent the latch arm hole, and adapted to receive the front plate ridge so as to hold the latch arm in position.
28. A gate latch, for use in connection with a pontoon boat, the pontoon boat having a handrail with at least one jamb, the jamb having a predetermined width and a predetermined depth, the jamb having a mounting hole therethrough, the gate latch comprising:
- a gate stop, the gate stop having a front plate extending between opposite upper and lower edges and extending from a proximal end to a distal end, the distance between the front plate proximal end and the front plate distal end being generally commensurate with the jamb's predetermined width, the gate stop having a rear plate extending between opposite upper and lower edges and extending from a proximal end to a distal end, the distance between the rear plate proximal end and the rear plate distal end being greater than the jamb's predetermined width, the gate stop having a transverse plate extending between opposite upper and lower edges and extending from the front plate proximal end to the rear plate proximal end, the distance between the front plate proximal end and the rear plate proximal end being generally commensurate with the jamb's predetermined depth, the gate stop front plate having a hole therethrough, the gate stop rear plate having a hole therethrough collinear with the front plate hole, the front and rear plate holes being adapted for alignment with the jamb's mounting hole, so as to be able to mount the gate stop on the jamb, the gate stop being molded from a polymeric material, the gate stop having a U-shaped metal insert disposed within the molded gate stop;
- a latch arm extending from a proximal end to a distal end, the latch arm having a front aspect and an opposite rear aspect, the latch arm having a knob projecting outward from the front aspect at the distal end for manual grasping, the latch arm having a button projecting outward from the rear aspect at the distal end for contact with the gate, the knob projecting outward further than the button, the latch arm being reversible so as to accommodate different size jambs, the proximal end having a hole therethrough, the hole being adapted to pivotally mount the latch arm on the gate stop front plate for pivotal movement of the latch arm from a generally upright latch open position wherein the gate will be free to open, to a generally lateral latch closed position wherein the gate will be captured between the latch arm and the gate stop rear plate, the front plate and the latch arm having mutually opposed mating faces, one of the mating faces having a ridge molded in, and the opposed of the mating faces having at least one groove molded in, the groove being adapted to receive the ridge, so as to hold the latch arm in one of the generally upright and generally lateral positions, the latch arm being molded from a polymeric material, the latch arm having a metal insert disposed within the molded latch arm; and
- pivotal means for pivotal mounting of the latch arm proximal end on the gate stop front plate.
29. The gate latch of claim 28, wherein the pivotal means further comprises a threaded fastener adapted for passing through the latch arm hole and the gate stop front plate hole and the jamb's mounting hole and the gate stop rear plate hole, so as to pivotally fasten the latch arm to the gate stop front plate and to fasten the gate stop to the jamb.
30. The gate latch of claim 28, wherein the gate stop polymeric material and the latch arm polymeric material are selected from the group consisting of thermoplastic resins and thermoset resins.
31. The gate latch of claim 28, further comprising:
- the latch arm mating face having the ridge molded in adjacent the proximal end, the ridge extending radially outward from the hole; and
- the gate stop front plate mating face having the groove molded in, the groove extending radially outward from the hole, and adapted to receive the latch arm ridge so as to hold the latch arm in position.
32. The gate latch of claim 28, further comprising:
- the gate stop front plate mating face having the ridge molded in, the ridge extending radially outward from adjacent the front plate hole; and
- the latch arm mating face having the groove molded in adjacent the proximal end, the groove extending radially outward from adjacent the latch arm hole, and adapted to receive the front plate ridge so as to hold the latch arm in position.
Type: Application
Filed: Apr 20, 2006
Publication Date: Oct 25, 2007
Inventor: David Thompson (Bricktown, NJ)
Application Number: 11/407,789
International Classification: E05C 3/04 (20060101);